filter foreignkey field in django admin

Question

I have these models:

class Entity(models.Model):
       name=models.CharField(max_length=100)
      
class Theme(models.Model):
   name=models.CharField(max_l         


        

Answer 1

look here http://books.agiliq.com/projects/django-admin-cookbook/en/latest/filter_fk_dropdown.html

@admin.register(Hero)
class HeroAdmin(admin.ModelAdmin, ExportCsvMixin):
    ...
    def formfield_for_foreignkey(self, db_field, request, **kwargs):
        if db_field.name == "category":
            kwargs["queryset"] = Category.objects.filter(name__in=['God', 'Demi God'])
        return super().formfield_for_foreignkey(db_field, request, **kwargs)